Bean or pea thrashing attachment for grain binders



Septl l v V c. A. HELM arm. 7

BEAN 0R PEA THRASHING ATTACHMENT FOR GRAIN BINDERS v Fil ed Feb. 25, 1922 2 Sheets-Shea? 1 Ju s KRXMI v NC INVENTORS WITNESSES C .Helm,

A TTORNEYS Sept. 28,1926. 1,601,120

' C. A. HELM ET AL BEAN 0R PEA THRASHING ATTACHMENT FOR GRAIN BINDERS Filed Feb. 25. 1922 2 Sheets-Sheet 2 co 5 5N EH O o lb-I a \n 1 a 3 I: '3? 3 q i Q 3 I (0 F N .l A R I 3 1 a J, 3 $4 3; J 9 $1 3 WITNESSES A TTORNE I 8 Patented Sept. 28, 1926.,

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CHARLES ALTON HELM AND JOHN C. \VO OLEY, OF GOL'UIVIBIA, MISSOURI.

BEAN OR PEA THRASHING ATTACHMENT 'FORGRAIN BINDERS.

Application filed February 25, 1922. Serial No. 539,259.

Ihe cbject of the invention is to provide a device of the above character which may be substituted forthe'head of aigrain binder with a minimumof labor, .and which is adapted for receiving the crop being cut bythe binder and relieving the same of seed in a highly ellicient manner.

t is a further object oftheiinvention that the device or attachmentbe adapted to separatebeans or peas from their pods, dust and other particles and deposit'the same in a receiver.

It is a further important object of the.

invention that the device be extremely simple in construction and inexpensive to manufacture. g 1

Other objects and objects relating to details of construction, combination and arrangement of parts will hereinafter appear in the detailed description to follow. The invention is illustrated by way of example in the accompanying drawings, in which I Figure 1 is a view in elevation of the outer side of the attachment when applied.

Eigure is a transverse sectional view of the attachment when applied, as shown in Figure 1, and also showing in diagram theelevator and conveyor belts of the associated binder or harvester. Referring to the drawings more particularly, N indicates generally the drive wheel of a binder and E and E the'e'le'v'a'tor canvases which take thewheat or other grain being cut from the canvas A and elevates the same to the bundle tying mechanism or head portion of the binder. At P there is -in'dicated the usual pitman shaftfwhich is driven by the wheel WV; and which carries the usual sprocket wheel S which drives the canvas B through the sprocket chain C.

In the use oftheinventio'n it is of course assumed that the head portion ofthe binder is taken off, said head portion consisting in the usual bundle packing f and tying mechanism and etc, which ise'moju'nted on vthe right hand side of the drive wheel W V and directly therea bove.

In gc'arryin g out theinvention,we provide a housing generally indicated: by the referen ar ste H whi e f he met-a1 an 0f la y e e stre g h Th rear portion thereof may be open and a separate shleld maybe secured to the hind er inorder to form a closure for the rear end of the housing H. The. upper end of the shield G should be disposed directly be neath the elevator canvas E as shown in Figure 2-, and the upper end of the housing H should terminate in close proximity to the upper endof the elevator canvas E,

as likewise shown in Fi ure 2 The outer end of :the housing should terminate 1n an opening M which extends the entire width of the housing and through which the pods and straw after being relieved of beans or peas may be discharged.

The housing 'H may be secured to the binder in any suitable manner, but preferably means should be provided so that the mounting and dismounting of the housing may be done in ashort interval of time and w th a miminum of labor.

Within the housing at the upper end thereof there is mounted a shaft 10 which extends the entire width of the housing H and carries a cylinder '11. The cylinder 11 has connected thereto a-p'lurality of chains 12, said chains being arranged in rows, as shown, and each chain having its one end connected to the cylinder, while its other 35 end is free. Below the cylinder 11 there is positioned what may be termed the concave 13, which in this instance, is not curved as is'the usual case. The concave consis'ts in plate members carrying teeth 14; between which the chains 12 are adapted to pass upon the cylinder 11 being rotated. Between the concave 13 and the elevator canvas E there occurs the usual roller 15 to facilitate the passing of pods fromthe elevators E and E upon the concave 13.

Beneath the concave 13 there is mounted between the side walls of the housing H a shaft 16, the shaft 16 is 'b'entintoa series of V-shaped portions and thus forming two series of points as at 17 and 18 which have an equal throw with the rotationof the shaft 16, but one series of points being spaced from the other series of points 180 when viewed with respect to the rotation of the shaft. "Forward to the shaft 16 there is supported a bar19- by the brackets 20, said brackets being secured to the housing Elias shown. Thebar 19 is in :fact positioned adjacentthe mouth or opening 11 -:of the ihous- "leis-adjacent the otheread e'f he-nousin'gH has eenhere.-v

tofore stated. To each of the the crank shaft 16 there is pivotally connected a rack bar 22, said rack bars representing a set, each of which carries a series of upstanding teeth as at 23. These rack bars are conn cred with the shaft 16 attheir rear ends and their forward ends are disposed upon the bar 19 and adapted to slide the eovcr when reciprocated by the rotation of the shaft 16. To each point 18 of the shaft 16 there pivotally connected a rack bar 21, said bars 2% constituting a second set of rack bars; and each l or having extending upi ardly therefrom series of teeth as at 25, Figure 2. The teeth of both sets of rack bars 22 and 24: are inclined forwardly ith respect to the housing IT best shown in Figure 2. The forwa-d ends of the rack bars 24: are also disposed upon the supporting bar 19 and adapted to slide thereon with the rotation of the shaft 16.

Beneath the sets of rack bars and it there is mounted the two screens 26 and 27. the screen 27 being superposed with relation to the screen 26 and of coarser mesh. The forward end of the screen 26 is suspended by a pair of arms 28, saio arms being pivoted to the screen at one end and pivoted at their upper ends to the supporting bar 19. To the rear end of the screen 26 there is pivotally connected the one end of links 29. its other end being loosely connected to the crank portion 30 of the shaft 16. The other side of the same screen is connected to the crank shaft portion 82 through a link 31 in a similar manner.

The forward end of the screen 27 is connected to the supporting bar 19 by the links in the same manner the screen 26. t

points 1? of 3 "sh rear end the screen 27 is connected to the .aft 16 by the links the links being; each pivotally connected at. their upper ends to a crank portion 35 of the shaft 16. Upon the rotation of the shaft 16 the screen 27 w"ll be moved similar to the screen 26, that is, for causing objects thereon to shift toward the opening M of the housing ll. The motion of screens 26 and 27 is reciprocatory.

The pitman shaft P of the hinder carries a gear wheel 37. The housing is formed with a cylindrical portion along its lower and rear end as indicated at B. This portion B is for the purpose of enclosing a fan. and has an opening extending the entire length thereof as indicated at 38 iliiOUfQ-jll which the air generated by the fan may cape into the housing; H. i 'ithin the cylindrical housing B there is suitably journaled a shaft 39 which supp rts a plurality of wings or plates 40. The haft 39 carries a cog wheel of small diameter which meshes with the gear wheel 39. The shaft 39 also carries a sprocket wheel 41 over which there passes a sprocket chain 42, said chain passing'over a suitable sprocket Wheel carpitman shaftof the binder.

For rotating the shaft 16 there is provided it? which i.. en ained by the l ain 4-2 and rot: "-rvith the movement of the sprocket chain.

The housing l is also formed at its lower end with a spout portion T and beneath which there is positioned a trough T. The iro= 1 its rear end terminates with an "-1 U ending section T which in iirn tcrniinats at its upper end in a goose neck portion I? and which is adapted to support s sack 9' into which beans or other crop being thra suitable )pcrt nro'rided. s i 1 ch por ion T. il'ithin the trough i tiere is provided a track conveyor section as at 4:2 and d3 respectively. The

conveyor, in each instance, of conventional type and consisting in a pair of sprocket chains passing over suitable sprocket wheels carried within the a ociated trough section. The pair of sprocket chains carry cro s slats which are adapted to drag upon the bottom of trough and thus carry the seed and deposit the same within the trough section T. The conveyors may be operated from the pitnian shaft in any suitable way not shown.

To the upper wall of the housing there is shed may be deposited. A for the :k as at l1 may be upport being secured to the hi p ed bail'le plate the purpose oi" which will be later erq ilazned. Also tle tongue 10 of thebinder may be supported by a guide wheel T3" in order to fac'i the advancement and guiding of the binder. It is assumed that the binder with which he invention may be associated is designed or harvestingwheat or oats and that the 1111i? may be lo vered and properly tilted v:o that it will be capable of severing a bean or *Jea crop close to the earth. This matter is of considerable importance in harvesting beans or peas and should be given attention. 'lVith the forward advancement of the hinder assuming that the present attachment has been substituted for the bundle tying mechanism, etc., the beans or other crop severed will be elevated by the canvases E and E and thrown upon the concave 13. The pods will be beaten by the chains 12 carried by the cylinder 11 and relieved of the beans or peas whichever they may contain. The straw and seed will advance upon the con cave 13. The pods and seed will be deposited upon the sets of uppermost rack members and with the turning of the shaft 16 these pods and stalks will be tossed to cause the seed to drop therefrom upon the uppermost screen 27, while the pods and other straw will continue to move forward and he eventually ejected through the open- Ill) ing M of the housing H. The fan of the attachment is of course rotating and a blast of air therefrom propelled in the direction of the arrows 50 which air will lift any small particles which may have been dropped upon the screen 27 with the seed and carry the same out through the opening or mouth 11. The seed will drop through screen 27 and also screen 26, and while passing through these two screens will be relieved entirely of any foreign matter such as parts of pods and other debris which may collect with the same. After passing through the screen '26 the beans or peas will pass through the spout P and into the trough section T and from thence be conveyed to the sack S by the conveyors heretofore mentioned and described.

Thebafile plate as serves to retard the straw in its passage from the sets of rack members 22 and 24 so that no seed will be carried therewith.

lVith respect to the thrashing cylinder 11 and chains 12 attached thereto, it may be her-e mentioned that the chains may be replaced by other flexible elements which would serve with equal efficiency.

VJlnle we have shown and descrlbed the preferred form of our invention, we wish it to be understood that we are aware of the fact that the construction, combination and arrangement of parts may be changed by those skilled in the art without departing from the spirit of the invention as indicated by the appended claims.

We claim 1. A thrashing attachment for harvester machines having upwardly inclined elevator belts for elevating the cut grain from the harvesting means, said attachment comprising a casing or housing having a grainreceiving mouth in one end wall and a straw discharge outlet in another wall, the end wall of said casing having said mouth being so disposed as to present said mouth in a substantially vertical plane enabling the mounting of said attachment in close approach of said mouth to the upper end of the elevator belts and adapting said attachment to be substituted in said mounted position for the binder head of a harvester, and means within and carried by said casing for separating grain from its straw and discharging the straw through said discharge outlet, said means comprising a thrashing cylinder and beater table disposed inwardly adjacent said mouth.

2. A thrashing attachment as set forth in claim 1, having a transfer roller journaled in side walls of said casing immediately forwardly of said heater table and having its frontal surface approximately in the plane of said mouth.

3. A thrashing attachment for harvester machines having upwardly inclined elevator belts for elevating the cut grain from the harvesting means, said attachment comprising a casing or housing having a grain receiving mouth in one end wall and a straw discharge outlet in another wall, the end wall of said casing having said mouth being so disposed as to present said mouth in a substantially vertical plane enabling the mounting of said attachment in close approach of said mouth to the upper end of the elevator belts and adapting said attachment to be substituted in said mounted position for the binder head of a harvester, and thrashing and separating means within and carried by said casing.

CHARLES ALTON HELM.

JOHN QWOOLEY. 

